Front

What does Darwin's theory of evolution suggest?

Back

Species change over time.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function in a species, such as the tailbone in humans.

Front

What is an example of a vestigial structure?

Back

The tailbone of a human.

Front

What is speciation?

Back

A process where a population splits and accumulates different genes in the new groups.

Front

What is natural selection?

Back

The process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is an example of natural selection?

Back

Insect populations developing resistance to certain pesticides.

Front

What is a homologous structure?

Back

Structures in different species that are similar due to shared ancestry.

Front

What is an analogous structure?

Back

Structures in different species that serve similar functions but do not share a common ancestry.

Front

What is the significance of the pelvis bone in whales?

Back

It is a vestigial structure that indicates a common ancestor.

Front

What does it mean for a trait to be inherited?

Back

It means that the trait is passed down from parents to offspring through genes.